feat: add dashboard API with quick links and widgets

- Dashboard domain with Quick Links CRUD + reorder endpoints
- Dashboard widgets management endpoints
- Database migrations for quick_links and dashboard_widgets tables
- Static file controller for Organizr widgets
- Default local user when OIDC is disabled
- Domain-based architecture refactor (src/domains/, src/shared/)
- Test suite updated for new structure (285 tests passing)

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,33 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.6.0] - 2026-01-03
+
+### Added
+
+- **Dashboard API** - Quick links and widgets management for Organizr-style dashboard
+  - `GET /dashboard/quick-links` - List quick links with category/visibility filtering
+  - `GET /dashboard/quick-links/{id}` - Get single quick link
+  - `POST /dashboard/quick-links` - Create quick link
+  - `PUT /dashboard/quick-links/{id}` - Update quick link
+  - `DELETE /dashboard/quick-links/{id}` - Delete quick link
+  - `POST /dashboard/quick-links/reorder` - Reorder quick links by position
+  - `GET /dashboard/widgets` - List dashboard widgets
+  - `GET /dashboard/widgets/{id}` - Get single widget
+  - `POST /dashboard/widgets` - Create widget
+  - `PUT /dashboard/widgets/{id}` - Update widget
+  - `DELETE /dashboard/widgets/{id}` - Delete widget
+- Database migrations for `quick_links` and `dashboard_widgets` tables
+- Static file controller for serving Organizr widgets (`/static/widgets`)
+- Default local user authentication when OIDC is disabled
+
+### Changed
+
+- **Domain-based architecture** - Refactored codebase to domain-driven structure
+  - `src/domains/` - Domain modules (auth, dashboard, health, housekeeping, infrastructure, tools)
+  - `src/shared/` - Shared utilities (base, config, database, logging, security, clients)
+- Test suite updated for new domain structure (285 tests passing)
+
 ## [1.5.0] - 2026-01-01
 
 ### Added